Patent US3211579A successfully refreshed from Google Patents.
US3211579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting resinous compositions
Assignee: Wyeth Holdings LLC
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Filing: 1961-08-16
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Granted: 1965-10-12
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Expires: 1981-08-16
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Reiter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:05
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08G; C08G12/00; C08G12/02; C08G12/40; C08G12/44; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08L63/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31942; Y10T428/31946
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
A PROCESS FOR THE PREPARATION OF A STAIN-RESISTANT ARTICLE WHICH COMPRISES APPLYING, TO A HEAT- AND PRESSURECONSOLIDATED ARTICLE PREPARED FROM A THERMOSETTING AMINOPLAST RESINOUS COMPOSITION, A COATING OF A THERMOSETTING RESINOUS COMPOSITION COMPRISING A SOLUTION, IN AN INERT ORGANIC SOLVENT, OF A BLEND OF FROM ABOUT 20 TO ABOUT 75 PARTS BY WEIGHT OF (A) A PREFORMED ACID MODIFIED REACTIVE CONDENSATE OBTAINED BY CO-REACTING, TO AN ACID NUMBER NOT APPRECIABLY MORE THAN ABOUT 10, FROM ABOUT 1 TO ABOUT 8 MOLS OF (1) A POLYALKYLATED POLYMETHYLOLMELAMINE HAVING FROM ABOUT 4 TO ABOUT 6 METHYLOL GROUPS, OF WHICH FROM ABOUT 3 TO ABOUT 6 ARE ALKYLATED WITH A LOWER ALKYL GOUP, AND HAVING NOT MORE THAN ABOUT ONE UNALKYLATED METHYLOL GROUP, PER MOL OF (2) AN ORGANIC POLYCARBOXYLIC ACID, AND CORRESPONDINGLY FROM ABOUT 80 TO ABOUT 25 PARTS BY WEIGHT OF (B) A REACTIVE ORGANIC POLYFUNCTIONAL POLYOL SELECTED FROM THE GROUP CONSISTING OF AN EPOXY RESINOUS MATERIAL, OBTAINED BY REACTING A POLYHYDRIC PHENOL WITH AN EPIHALOHYDRIN, AND A FREE HYDROXYLCONTAINING COPOLYMER OF A STYRENE WITH A HYDROXYL-CON TAINING VINYL MONOMER CORRESPONDING TO THE GENERAL FORMULA:
Claim 2
Dependent Claim
184 words
A PROCESS FOR THE PREPARATION OF A STAIN-RESISTANT ARTICLE WHICH COMPRISES APPLYING, TO A HEAT- AND PRESSURECONSOLIDATED ARTICLE PREPARED FROM A THERMOSETTING AMINOPLAST RESINOUS COMPOSITION, A COATING OF A THERMOSETTING RESINOUS COMPOSITION COMPRISING A SOLUTION, IN AN INERT ORGANIC SOLVENT, OF A BLEND OF FROM ABOUT 20 TO ABOUT 75 PARTS BY WEIGHT OF (A) A PREFORMED ACID MODIFIED REACTIVE CONDENSATE OBTAINED BY CO-REACTING, TO AN ACID NUMBER NOT APPRECIABLY MORE THAN ABOUT 10, FROM ABOUT 1 TO ABOUT 8 MOLS OF (1) A POLYALKYLATED POLYMETHYLOLMELAMINE HAVING FROM ABOUT 4 TO ABOUT 6 METHYLOL GROUPS, OF WHICH FROM ABOUT 3 TO ABOUT 6 ARE ALKYLATED WITH A LOWER ALKYL GOUP, AND HAVING NOT MORE THAN ABOUT ONE UNALKYLATED METHYLOL GROUP, PER MOL OF (2) AN ORGANIC POLYCARBOXYLIC ACID, AND CORRESPONDINGLY FROM ABOUT 80 TO ABOUT 25 PARTS BY WEIGHT OF (B) A REACTIVE ORGANIC POLYFUNCTIONAL POLYOL SELECTED FROM THE GROUP CONSISTING OF AN EPOXY RESINOUS MATERIAL, OBTAINED BY REACTING A POLYHYDRIC PHENOL WITH AN EPIHALOHYDRIN, AND A FREE HYDROXYLCONTAINING COPOLYMER OF A STYRENE WITH A HYDROXYL-CON TAINING VINYL MONOMER CORRESPONDING TO THE GENERAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |